trigger-window-action-with-new-form-ex2.py

def action_add_bank(self):
  return {
      'name': 'Add New Bank',
      'type': 'ir.actions.act_window',
      'res_model': 'kyc.customer.bank',
      'view_type': 'form',
      'view_mode': 'form',
      'view_id': form_view.id,
      'res_id': self.id,
      'target': 'new',
      'context': {
          'default_bank_reference': self.bank_reference,
      },
  }